河的水流 的英文怎麼說
中文拼音 [hédeshuǐliú]
河的水流
英文
the current of a river- 河 : 1 (天然的和人工的大水道) river 2 (指銀河系) the milky way system; the galaxy 3 (特指黃河) t...
- 的 : 4次方是 The fourth power of 2 is direction
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 水流 : 1. (江河) rivers; streams; waters2. (流動的水) current; water flow; fluent; flow; [水文] stream current
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Numerical simulation study on three - dimensional velocity field of fluvial channel current
河道水流三維流速場的數值模擬研究The current is strongest in the middle of the river.
河中心的水流最急。In the paper, river and the downstream area of dike are regarded as a whole system, and hydraulic model of coupling 1 - d river and gradual dike - break is established, therein the preissmann implicit difference scheme is applied to main river, and the fvm ( finite volume method ) is applied to the breach and polder
本文將河道與堤壩下游區域視為一個整體,對于單一河道採用preissmann四點隱式差分格式計算,對于潰口及圩區採用有限體積法,建立了一維河道與堤壩漸潰耦聯的水力模型,也是一維、二維耦合的水流模型。K - l les of shallow - water turbulent flow in open channels with a vegetated domain
帶有植物的河道水流淺水紊流運動大渦模擬By modeling of " y " - shaped junction of the compound river channel with an intersection angle 90, the flow velocity and water level at the junction were obtained by use of the acoustic doppler velocimeter ( adv ) and point gauges
摘要通過製作交匯角為90的復式斷面河道" y "型交匯河口模型,利用三維聲學多普勒流速儀( adv )和測針獲取流速及水位數據,對支流河口處的水流流態包括水面形態、水流流速和水流分區進行分析。The improved scheme can ensure the south branch to be open to navigation and the flow here not to be broken in low water seasons, and it will have active effect on protecting the south branch and fuyuan town. this study is an attempt of applying three - dimensional mathematical model in analogue calculation and analysis of flow, sediment and riverbed movements in a long river reach. it is very important for the future thorough research, and has great significance for promoting the application of the three - dimensional model to resolve
本研究是三維數學模型對較長河段水流、泥沙、河床運動模擬計算分析的一次嘗試,其對今後進一步深入研究和應用三維模型解決工程實際問題,完善模擬方法、提高模擬水平,真正發揮數學模型其省時、省力、靈活方便和模擬細膩等在研究水沙運動規律和河床變形等方面研究中優勢具有重要的意義。The flow of air in a jet stream can be likened to a fast - flowing river. where the fast - flowing river meets slow - moving water near the banks, waves and swirls are often generated
空氣在高空急速流動,就好像水在猛急河流中流動一樣,當猛急的河水遇上河岸旁緩緩的水流時,便會產生波浪和漩渦。The concept of this work comes from the riverbed and the nourishing effects the river plays in world cultures. symbolizing riverbeds in nature and adding a touch of leisure life in modern society, the five granite beds rest on a miniature course of the keelung river with small current of water running on each one. the sandblasted forms of fruits and maple leaves recall the importance of environment
本作品河床,以大河孕育文化做為作品創作發想點,加入現代社會的生活休憩概念,將五組象徵大自然中河川交匯的床型花崗巖雕塑,架設于卵石所鋪設而成的基隆河之上基隆河的河道造型則保持截彎取直前的原貌,並以少流量的水流,薄薄地覆蓋五組床型雕塑品,床板上散落的楓葉與果實,則象徵環保理念對大自然保育的重要性。In the tidal estuary, the current is complex, and the flow is oscillatory. some experiential formulation has presented to calculate the vertical turbulent mixing coefficient. on the base of analysis of the hydrodynamic in the estuary, the theoretical equation, which describes the distribution of the space and time of vertical turbulent exchange coefficient, has developed, the equation has applied to the practice
潮汐河口水流呈往復振蕩運動,本文在分析潮汐河口水動力特性基礎上,考慮了慣性力及重力等項的影響,通過理論推導得到潮汐河口垂向紊動交換系數的空間分佈及時間分佈的計算公式,以及垂向平均紊動交換系數的時間分佈的計算公式,並將其應用於潮汐河口的實際計算中。The analyse of sixianjiao channel current character and sanshui hydrologic station riverbed undercutting
思賢?的水流特徵及三水水文站河床下切分析Then establishing a dependable orientation water - sediment dynamics of river networks is the important part of the work
則建立一套可靠適用的城市河網水流泥沙動力學模型就是數字水利的重要部分。Continuous downpour on the upper reaches of the yangtze river has resulted in this year ' s heaviest flood, with 3, 3000 cubic meters of water flowing into the three gorges reservior every second
這幾日連續不斷的傾盆大雨使得揚子江上遊河段區域迎來了今年洪峰,平均每一秒就有大概3 , 3000立方米的水流進三峽大壩的貯水池。Abstract : variation of flow condition caused by the multi - pur pose regulation schemes has been investigated on the basis of measured date in r iver model. flood - control of the upper river, operation of the power - station, saf ety of the bridge and power - station, navigation and evolution of the river are a nalyzed. a reasonable and feasible project alternative and the improvement measur ement are proposed
文摘:涪江潼南河段防洪整治是一項以防洪為主體的綜合性河岸整治工程,在平面二維數值模擬計算的基礎上再進行河工模型試驗,比較分析各防洪整治方案下潼南河段水流條件的變化,及其對上游防洪、河道、大橋、電站、航運、河勢的影響,提出合理可行的工程方案Numerical models are frequently used to simulate water flow in hydraulic engineering. shallow water equations are basic governing equations with assumption of the velocity distribution uniformly in vertical, so they have some limitations on the simulation of some plane flows, such as wind - induced flow, curve river flow and flow nearby the submerged dikes. for above - mentioned reasons, extended shallow water equations are developed by introduction of momentum coefficient, correction of convection and bed resistance in equations of motion
在水利工程中經常需要採用數學模型模擬水流的流態,淺水方程是進行平面流態模擬計算的基本控制方程,但因其忽略了流速垂線分佈的不均勻性,在模擬某些平面流態(如風生流動、河灣水流、潛壩等工程附近的流動)時存在一定的局限性。While each of the party was absorbed in reflections so different, the sledge flew fast over the vast carpet of snow. the creeks it passed over were not perceived. fields and streams disappeared under the uniform whiteness
有時,雪橇滑過小蘭河的支流和小河,但乘客們卻沒有發現這些河流,因為田野和河水都已變成了清一色的雪白平原,大地上光蕩蕩地一無所有。A water power generating facility makes use of the energy difference between two different levels of flowing water by transferring the water from natural bed of the stream at the higher level to the bed at the lower level and effectively extracting its potential energy, which is then made available at the rotor shaft for further use
通過利用河流中不同水位之間的能量來驅動螺旋泵的轉軸,在將高水位的水流輸送到低水位的過程中汲取水流中儲存的能量,將其轉化成電能。Excavating riverbeds in one channel may not only reduce the velocity area in some areas but also increase the velocity in other areas by increasing flow rate in this channel without correspondent changes in riverbeds of rocky rapids. in result, the velocity in waterway may be increased instead of be reduced, the flow condition may also be deteriorated. thus, which branch should be excavated and how to excavate in improving the flow condition of the branch should be further explored
但在分汊河道內,情況較為復雜,在一汊河道內採取開挖措施后,雖然其過水斷面有所增加,局部流速相應降低,但是由於工程后,汊道的分流比將會相應變化,而石質河床一般無法通過沖淤變化以適應水流條件的改變,因此,航道內工程處的流速可能降低,也可能不降反而有所增加,惡化了航道的水流條件。The situation of yellow river dry - up is gradually rigorous. it has being influenced the development of the lower reaches of yellow river and the implement of strategy on developing the western areas. based on analyzing the harmfulness, causes of its dry - up from the factors of physical geography and human activities, this article put forward the engineering and non - engineering control measures for controlling yellow river dry - up : strenghtening the unified management and despatch for its water resource ; resorting to compulsion to save water ; quickening key projects duild for the addition of balance and water storing capacity ; increasing synthetical administer to ecological environment ; increasing effectivesupply of water resource
黃河斷流形勢日趨嚴峻,斷流的頻率增加、時間延長、里程增大,嚴重製約了黃河流域尤其是黃河下游地區的可持續發展和開發大西部戰略的實施.在分析黃河斷流造成的危害、黃河斷流的自然因素和人為因素的基礎上,提出了加強黃河水資源的統一管理和調度、採取強制措施厲行節約用水、加快骨幹工程建設增加調蓄能力、加大流域生態環境綜合治理的力度、適時開源增加水資源的有效供給等工程性和非工程性措施,以防治黃河的斷流You shouldn ' t swim in the river. there are dangerous currents
你不應該在這條河裡游泳,這河的水流很危險。The current of a river
河的水流分享友人